I have a complete setup of Definite Technology speakers, but specifically stayed away from all their units with built in subs. On the other hand I have heard many of the ones with built in subs fully hooked up in an acoustically treated theater in a home and was not disappointed with the sound at all.
For the money, the ones without built in subs I think definitely are a better way to go. They very much are considered a movie watchers speaker instead of a music listeners speaker. Since I watch 95% movies/HD then I am very happy with them and they have performed flawlessly for me for a little over a year.
2 BP-30 mains
1 CLR 2000 center
2 BPX surrounds
1 PF15TL+ sub
I am not thrilled with the PF15TL+ sub I want to note. I am replacing it with a Velodyne HGS which simply blows it away.
Otherwise, Velodyne really gives you a lot of bang for the buck since they aren't putting pretty wood all over their cabinetry and charging you through the a$$ for the wood. Instead, the simple acoustically transparent cloth (sock) covers the speaker and leaves it working just as well for less cash.
Good deal on good speakers in many instances.